Head out to the untouched winter backcountry with peace-of-mind knowing you"ve got the Arva Axis Avalanche Transceiver with you. The easy-to-read LCD display helps you whether in primary, secondary or pinpoint search modes. If you get caught in a secondary slide and quit moving for 4 minutes, it automatically switches to transmit mode so that other searchers can find you as well since it has a motion sensor that detects your movements. Override this function while probing or digging when you switch to standby mode.